rk3308: ddr: update version to v1.20

from commit:
	fdfa64b rk3308: DDR Version V1.20
change:
	adjust auto power down and auto self-refresh for lower
power in VCC_DDR and VDD_CORE.

Change-Id: I17fe5d5621d2db7ea64dfb5848706c49da1c3974
Signed-off-by: Zhihuan He <huan.he@rock-chips.com>

RKBOOT/RK3308MINIALL.ini

@@ -5,7 +5,7 @@ MAJOR=1
 MINOR=01
 [CODE471_OPTION]
 NUM=1
-Path1=bin/rk33/rk3308_ddr_589MHz_v1.19.bin
+Path1=bin/rk33/rk3308_ddr_589MHz_v1.20.bin
 Sleep=1
 [CODE472_OPTION]
 NUM=1
@@ -14,7 +14,7 @@ Path1=bin/rk33/rk3308_usbplug_v1.01.bin
 NUM=2
 LOADER1=FlashData
 LOADER2=FlashBoot
-FlashData=bin/rk33/rk3308_ddr_589MHz_v1.19.bin
+FlashData=bin/rk33/rk3308_ddr_589MHz_v1.20.bin
 FlashBoot=bin/rk33/rk3308_miniloader_v1.01.bin
 [OUTPUT]
-PATH=rk3308_loader_v1.19.101.bin
+PATH=rk3308_loader_v1.20.101.bin